Pretty print JSON from the command line

Recently I’ve worked on a small project where I needed to pretty print JSON from the command line for quick verification.
For the task I created a pp alias in my .bashrc that worked perfectly (all the code is on the same line):

alias pp='python -c "import sys, json; print json.dumps(
json.load(sys.stdin), sort_keys=True, indent=4)"'

Just today I was re-reading the official Python documentation on a json package and came across a small gem – json.tool module that is used for validation and pretty-printing.
I modified my alias which is now way shorter and does the same job as my old one:

alias pp='python -mjson.tool'

And here is pretty-printing in action: